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CVE-2021-34121

Date: July 17, 2023

An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.

Language: C++

Severity Score

Related Resources (5)

https://security-tracker.debian.org/tracker/CVE-2021-34121
https://github.com/michaelrsweet/htmldoc/commit/c67bbd8756f015e33e4ba639a40c7f9d8bd9e8ab
https://nvd.nist.gov/vuln/detail/CVE-2021-34121
https://github.com/michaelrsweet/htmldoc/issues/433
https://www.mend.io/vulnerability-database/CVE-2021-34121

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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